What is Solar Energy Storage System: Benefits, Types, and Prices

It is used as a means to fill the gap between energy produced by a solar generation system, and the consumption energy which takes the extra energy generated when the sun is shining, such as day-time, to be released when the sun does not, such as night time, rainy day, grid down etc. JOZOKING (TIANJIN) TECHNOLOGY CO., LTD. provides all range energy storage system including both the conventional type (lead acid battery based system) and the new technology ones (lithium based system) which are widely adopted in residential and commercial or industrial sector all around Europe, America and Australia.

Understanding Solar Energy Storage Systems

A solar energy storage system includes not only the solar array but also an inverter that converting the DC (direct current) into AC (alternating current) for home use as well as the control systems that oversee the charging and discharging of batteries. The heart of any energy storage system is the battery-its storage capacity, lifetime and the lifetime cost are all linked to it.

For small applications, 12v li ion battery or 12v lead acid battery could satisfy a number of small scale backup scenarios. With the increasing demands for energy storage, we can move to 24v lithium battery and 48v lithium battery which is now the common voltage configuration for most household solar systems and provide much higher energy efficiency, lower transmission loss. JOZOKING also designs modular rack mounted and wall mounted systems which enable users to begin with a low capacity system and extend it later as the requirement changes, making the solution available for more clients .

Battery Types: Lead-Acid vs. Lithium-Ion

When it comes to selecting the type of solar storage technology you intend to install, one of the biggest factors is lead-acid vs. Lithium technology. This choice can heavily impact how well your storage system operates, the upkeep it will require, and your system’s cost throughout its lifespan.

Lead-Acid Batteries may initially be a good selection because they are less expensive upfront, especially for applications that don't require a high number of cycles and require limited funds to work with.JOZOKING’s AGM and GEL lead-acid battery products are maintenance-free, sealed, spill-proof and provide consistent deep cycle capabilities. However, a typical lead acid battery cannot be cycled to more than 50 % of its capacity without a loss in lifespan, and typically has a life of between 500-1200 cycles, that translates to a replacement life of 2-3 years for regular-cycling systems.

Lithium Batteries, In fact, certain types of lithium-ion, especially LFP (Lithium Iron Phosphate) chemistry, have come to dominate the contemporary solar storage scene. You can expect about 4,000-6,000 cycles from an LFP lithium ion battery pack with 80-90% depth of discharge, or roughly 8-12 years if you’re using it for daily storage. In addition, the round trip efficiency of lithium systems is over 95%, compared to 80-85% with lead-acid. That means less energy lost to heat during charging and discharging cycles. A 48v lithium battery configuration is common for many residential and commercial applications, striking an ideal balance between power and efficiency for designers of such systems.

System Applications and SMES Energy Storage

There is a great diversity of uses for solar energy storage systems ranging from individual family homes to industrial and commercial installations.

Residential Systems Usually between 5 kWh and 20 kWh, these battery storage systems mainly aim to increase the utilization rate of self-produced electricity and self-generated electricity, and facilitate the utilization of electricity during off-peak hours and support power outages. JOZOKING wall type and cabinet type lithium ion battery storage system can provide you with space-saving, safe, reliable, and long life time solutions for your household use and solar systems.

Small and Medium Enterprise (SME) Energy Storage, Small factory & retail & office building. SME energy storage solutions, 5-100 KWH. Charging at off-peak hours and discharging during peak times to save 30-50% electricity cost and provide backup power for loads such as lighting, servers and security systems. Customize energy storage packs according to the needs of SME applications, minimize equipment downtime when grid events happen.

Commercial and Industrial Systems. As battery capacity scales to megawatt-hour level in modular containerized systems, many systems will start connecting with solar PV and the grid management system. In that scenario, those systems are expected to engage in virtual power plant (VPP) schemes and earn revenue from grid services.

Pricing and Long-Term Value

The expense of a solar power storage system varies according to parameters such as system capacity, battery choice, inverter model, and customized engineering. In properly designed systems, they are able to achieve more utilization for the solar energy collected. Excess photovoltaic energy can be accumulated for later use to ensure an adequate self-consumption rate and an improvement of utility costs on a daily basis.

Additional energy storage systems ensure sufficient backup power and prevent from power failures resulting from an inconsistent power supply grid.

High-quality gel batteries are made to be capable of dealing with diurnal charge and discharge loads. For instance, their stable plate structure not only prevents from capacity depreciation but also cuts down on the expense of periodical battery replacement. Considering operating expenditure in the long run in addition to an unending utility savings, you can attain quite a good financial profit through an efficient solar energy storage system throughout the long service life of decades. If you're looking at lithium ion battery installation system, try 48v lithium battery, and 24v lithium battery for bigger system, since they give a higher efficient performance for bigger size battery. For 12v li ion battery system, JOZOKING has compact 12v system for some small backup situation.

Regardless if you are a homeowner looking to achieve greater energy self-sufficiency or if your business wants to lower operational expenditures, JOZOKING has the technology and solutions to build the most effective solar energy storage system for your needs. Give us a call and we'll help you with your next project.